```html
<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>意图分类器可视化</title>
    <link rel="stylesheet" href="https://cdn.staticfile.org/font-awesome/6.4.0/css/all.min.css">
    <link rel="stylesheet" href="https://cdn.staticfile.org/tailwindcss/2.2.19/tailwind.min.css">
    <link href="https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;500;600;700&family=Noto+Sans+SC:wght@300;400;500;700&display=swap" rel="stylesheet">
    <script src="https://cdn.jsdelivr.net/npm/mermaid@latest/dist/mermaid.min.js"></script>
    <style>
        :root {
            --primary: #4F46E5;
            --secondary: #10B981;
            --accent: #F59E0B;
            --dark: #1F2937;
            --light: #F3F4F6;
        }
        body {
            font-family: 'Noto Sans SC', Tahoma, Arial, Roboto, "Droid Sans", "Helvetica Neue", "Droid Sans Fallback", "Hiragino Sans GB", Simsun, sans-serif;
            line-height: 1.6;
            color: var(--dark);
            background-color: #F9FAFB;
        }
        h1, h2, h3, h4 {
            font-family: 'Noto Serif SC', serif;
            font-weight: 600;
        }
        .hero-gradient {
            background: linear-gradient(135deg, var(--primary) 0%, #7C3AED 100%);
        }
        .card-hover:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
        }
        .transition-all {
            transition: all 0.3s ease;
        }
        .drop-cap:first-letter {
            float: left;
            font-size: 3.5em;
            line-height: 0.8;
            margin: 0.1em 0.2em 0 0;
            color: var(--primary);
            font-weight: 700;
        }
    </style>
</head>
<body class="min-h-screen">
    <!-- Hero Section -->
    <header class="hero-gradient text-white py-20 md:py-32 px-4 md:px-0">
        <div class="container mx-auto max-w-4xl text-center">
            <h1 class="text-4xl md:text-5xl font-bold mb-6">意图分类器可视化系统</h1>
            <p class="text-xl md:text-2xl opacity-90 mb-8 max-w-3xl mx-auto">
                通过先进的可视化技术，直观展示语言模型意图分类的核心逻辑与决策过程
            </p>
            <div class="flex justify-center space-x-4">
                <a href="#classification" class="bg-white text-gray-900 px-6 py-3 rounded-lg font-medium hover:bg-gray-100 transition-all">
                    <i class="fas fa-project-diagram mr-2"></i>分类逻辑
                </a>
                <a href="#visualization" class="bg-transparent border-2 border-white px-6 py-3 rounded-lg font-medium hover:bg-white hover:text-gray-900 transition-all">
                    <i class="fas fa-chart-pie mr-2"></i>可视化分析
                </a>
            </div>
        </div>
    </header>

    <!-- Main Content -->
    <main class="container mx-auto px-4 py-12 max-w-6xl">
        <!-- Introduction Section -->
        <section class="mb-20">
            <div class="flex flex-col md:flex-row items-center gap-10">
                <div class="md:w-1/2">
                    <h2 class="text-3xl font-bold mb-6 text-gray-800">理解意图分类器</h2>
                    <p class="text-gray-700 mb-6 text-lg drop-cap">
                        意图分类器是语言模型处理用户请求的第一步关键决策。它需要准确区分常规操作请求(Do模式)与规范文档处理请求(Spec模式)，以确保后续处理的正确性。
                    </p>
                    <p class="text-gray-700 mb-6 text-lg">
                        本系统通过直观的可视化方式揭示了分类器的决策逻辑，帮助开发者和用户理解模型如何处理不同的输入类型。
                    </p>
                    <div class="flex items-center text-blue-600 font-medium">
                        <i class="fas fa-arrow-down mr-2 animate-bounce"></i>
                        <span>探索下方交互式图表了解更多</span>
                    </div>
                </div>
                <div class="md:w-1/2">
                    <div class="bg-white rounded-xl shadow-xl p-6 border border-gray-200 transition-all hover:shadow-2xl">
                        <div class="mermaid">
                            graph TD
                                A[用户输入] --> B{包含"spec"或"规范"?}
                                B -->|是| C[Spec模式]
                                B -->|否| D{是命令式请求?}
                                D -->|是| E[Do模式]
                                D -->|否| F{是信息请求?}
                                F -->|是| E[Do模式]
                                F -->|否| G[默认Do模式]
                        </div>
                    </div>
                </div>
            </div>
        </section>

        <!-- Classification Logic Section -->
        <section id="classification" class="mb-20">
            <h2 class="text-3xl font-bold mb-10 text-center text-gray-800">分类逻辑详解</h2>
            
            <div class="grid md:grid-cols-2 gap-8">
                <!-- Do Mode Card -->
                <div class="bg-white rounded-xl shadow-lg overflow-hidden transition-all card-hover">
                    <div class="bg-blue-500 text-white p-4">
                        <h3 class="text-xl font-bold flex items-center">
                            <i class="fas fa-bolt mr-3"></i>Do模式 (默认)
                        </h3>
                    </div>
                    <div class="p-6">
                        <ul class="space-y-3 text-gray-700">
                            <li class="flex items-start">
                                <i class="fas fa-check-circle text-green-500 mt-1 mr-2"></i>
                                <span>请求修改代码或工作空间